P13 The EM Spectrum Flashcards
Name the EM spectrum in order from highest wavelength to lowest wavelength
Radio waves, microwaves, infrared waves, visible light, ultra violet, x - rays, gamma rays
What happens to the wavelength as you go from radiowaves to gamma rays
The wavelength decreases
What happens to the frequency as you go from radio to gamma waves
The frequency increases
What wavelengths and frequency do radio waves range from
Wavelength: 10^4 - 10^-1
Freq: 10^4 - 10^9
What frequency and wavelength do microwaves range from
Wavelength: 10^-1 - 10^-3
Freq: 10^10 - 10^11
What frequency and wavelength do infrared waves range from
Wavelength: 10^-3 - 10^-6
Freq: 10^12 - 10^14
What freq and wavelength does visible light range from
Wavelength: 10^-6 - 10^-7
Freq: 10^14 - 10^15
What freq and wavelngth does ultraviolet range from
Wavelength: 10^-7 - 10^-8
Freq: 10^15 - 10^16
What freq and wavelength do x - rays range from
Wavelength: 10^-8 - 10^-10
Freq: 10^17 - 10^19
What freq and wavelength do gamma rays range from
Wavelength: 10^-11 - 10^-12
Freq: 10^19 - 10^20
What order do the colours come in
Red Orange Yellow Green Blue Indigo Violet
Use of radiowaves
TV, radio, mobile phone
Dangers of radio waves
None
Uses of microwaves
Monile phones, cooking, satellite comms
Dabgers of microwaves
Can cause cancer
Use of infrared waves
Remote controls, thermal cameras, heating
Dangers of infrared waves
Eye damage
Uses of visible light
Illumination, fibre optic, comms
Dangers of visible light
Eye damage
Uses of ultraviolet
Killing bacteria, curing inks and resins, sun tanning, detecting forgeries
Danger of UV light
Skin cancer, premature aging, cataracts
Uses of x - rays
Examining inside of the body
Dangers of x -rays
Cancer, mutates DNA, kills cells
Uses of gamma rays
Radio therapy, sterylisation, nuclear industry
